Attachment for looms.



A. E. HALVORSEN.

ATTACHMENT FOR LOOMS.

APPLICATION FILED DB0. 11, 1911.

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A. E. HALVORSEN. ATTACHMENT' FOR Looms.

` y APPLICATION FILED DBO. 11, 1911. 1,034,368. Patented July 30,1912.

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. 0W T Affari/ey CDI-'.MHBI PLANGRFH C0., WASHINGTON. D. C.

AUGUST n. HAnvoisiiN, or PHILADnLP'HrA, PENNSYLVANA;

ATT'AcHivmrrr ron LooMs.-

Specification of Letters Patent.

Application atea December 1i, 1911.` serial No. 664,917.

To all 107mm, t may concern:

Be it known that I, AUGUST E. HALvoR- SEN, a subject of the King of Norway, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements `in Attachments for Looms, of which the following is a specification.

My invention relates to improvements in attachments for looms, an object of they invention being to provide improved means for securelv clamping the warp threads, so that all of the threads will be maintained taut, and prevented from puckering especially at the selvage edges Where this is most likely to occur and the device comprises a supply holder for use in the hand weaving of oriental or other rugs.

A further object is to provide improved mounting for the spools containing the warp threads which permits of independent movement of the spools to adjust the several threads to the proper tension, and provide improved means for clamping all of the threads and preventing accidental drawing of any of the threads.

A further object is to provide an attachment for looms, which is especially designed for use in the manufacture of Smyrna rugs or other rugs and the like, which are liable to pucker at the selvage edge, and which attachment serves to hold the warp threads at uniform tension, and prevent any puckering.

With these and other objects in view, the invention consists in certain novel features of construction, and combinations and arrangements of parts, as will be more fully hereinafter described and pointed out in the claims.

In the accompanying drawings: Figure 1, is a view in elevation illustrating my improvements. Fig. 2, is a view in section on the line 2 2 of Fig. 1. Fig. 3, is a view in section on the line 3 3 of Fig. 1, showing one of the clamps in section, and Fig. 4, is a top plan view of Fig. 1. f

1, represents the base of my`improved attachment which is provided adjacent its ends with vertical plates 2 connected by a top bar 3. Through Athe center of an end plate 2, a short shaft 4 is mounted, and has a relatively large gear 5 secured thereon.`

A handle 6 is provided to turn the shaft 4, and the gear 5 meshes with a circular se` ries of pinions 7. Each of these pinions 7 is secured upon a short shaft 8, and the short shafts 8 project through the end plate 2 and have cylindrical enlargements 9 thereon. The free ends of the shafts 8 project into bearings in the ends of spools 10, the opposite ends of said spools being mounted on journals 11 which` project` through a plate 12 connected by studs 13 ywith the opposite end plate 2.

serve to lock the spools to the shaft 8, so

that they turn with the shafts, and all of said spools may be turned simultaneously by the crank arm 6, as will be readily understood.

Each spool is permitted an'independent adjustment by turning the collar 16, so that the threads 18 may be drawn tight or loosened as desired. The threads 18 from the several spools are passed througheyes 19 on base 1, thence through eyes 20 on top plate 3, thence under springs 21, thence through eyes 22, and thence to the loom -where the rug or other article is being made.

The springs 21 are secured by rivets 22a to a metal plate 23 on top plate 3. The springs 21 are positioned at an incline or angle with their free ends resting upon a plate 24 on top plate 3. By reason of this disposition of the springs, the threads may be maintained in a straight line with the free ends of the springs only bearing downward upon said threads. To brace the springs downwardly and securely clamp the threads, a cam roller 25 is secured eccentrically upon a shaft 26 mounted in bearings 27. These bearings 27 are supported to slide in brackets 28 on top plate 3, and are adjustable by means of set screws 29, so as to perlmit vertical adjustment of the cam roller. A

crank arm 30 is provided on one end of the shaft to permit this cam roller to be turned. Vhen in one position, as shown in Fig. 2, the springs will securely clamp the threads, and when in its opposite position, as shown in Fig. 8, the intermediate portions of said springs 21 are permitted to bow upwardly and release the pressure on the thread.- It will thus be seen that the clamping of the threads' may be easily and quickly accom- Patented July so, i912! plished after they are properly adjusted in accordance with the work to be done.

In the initial arrangement of the warp threads, they are each drawn off the several spools and properly positioned on the loom. Each spool may be adjusted by the split collar, sol as to give it the proper tension, and all of the spools may be turned together to unwind or wind the threads by means of the arrangement of gears and pinions as above explained. IVhen the proper tension of the threads is had, the roller 27 is turned to securely cla-mp .all of the threads. None of the threads can then slip, and a uniform tension is had throughout the rug, especially at its selvage edge where it would otherwise be liable to puclr'er and the resultant article rendered defective.

Various slight changes might be made in the general form and arrangement of parts described without departing from my invention, and hence I do not limit myself to the precise details set forth, but consider myself at liberty to make suoli changes and alterations as fairly fall within the spirit and scope of the appended claims.

Having thus described my invention,what I claim as new and desire to secure by Letters Patent is:

l. An attachment for looms comprising a support, a circular series of spools mounted in said support, means for guiding the threads in parallelism from said spools, springs secured at one end and at their free ends bearing upon said threads, and a cam roller constructed to press downwardly upon all offsaid springs, substantially as described.

2. rAn attachment for looms comprising a support for spools, guides for threads from said spools, springs secured at one end and at their free ends bearing upon said threads, said springs positioned at an angle to the threads, whereby the free ends only of said springs bear upon said threads, and means for simultaneously pressing downwardly the free ends of said springs, substantially as described.

3. An attachment for looms comprising a support for spools, guides for threads from said spools, springs secured at one end and at their free ends bearing upon said threads, said springs positioned at an angle to the threads, whereby the free ends only of said springs bear upon said threads, means for simultaneously pressing downwardly the free ends of said springs, said means comprising a shaft, vertically adjustable bearings supporting said shaft, a crank arm on one end of said shaft, and a cam roller on said shaft engaging the springs, substantially as described.

4. An attachment of the cha acter described, comprising a base, uprights on the base, a top plate on the uprights, short shafts projecting through one upright, spools mounted to turn at one end of said short shafts, enlargements on said short shaft, pins secured eccentrically in the ends of the spools, splitcollars on said enlargements receiving the said pins, whereby said spools may have rotary adjustment, screws securing said collars on the enlargements, pin

ions on the shafts, a gear meshing with all of said pinions, and means for turning said gear, substant-ially as described.

5. An attachment of the character described, comprising a base, uprights on the bas-e, a top plate on the uprights, short shafts projecting through one upright, spools mounted to turn at one end of said short shafts, enlargements on said short shaft, pins secured eccentrically in the ends of the spools, splitcollars onl said enlargements rcceiving the said pins, whereby said spools may have rotary adjustment, screws securing said collars on the enlargements, pinions on the shafts, a gear meshing with all of said pinions, means for turning said gear, guides on said base and on said top plate for directing` the threads from the spools in parallelism over said top plate, and means for clamping said threads on the top plate, substantially as described.

6. An, attachment of the character described, comprising a base, uprights on the base, a top plate on the uprights, short shafts projecting through one upright, spools mounted to turn at one end of said. short shafts, enlargements on said short shaft, pins secured eccentrically in the ends of the spools, split collars on said enlargement-s receiving the said pins, whereby said spools may have rotary adjustment, screws securing said collars on said enlargements, pin ions on the shafts, a gear meshing with all of said pinions, means for turning said gear, guides on said base and on said top plate for directing the threads from the spools in parallelism over said top plate, springs on said top plate bearing downward upon said threads, and a cam roller above said springs and constructed to press all of said springs to clamp said threads, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

AUGUST E. HALVORSEN.

I'Vitnesses:

R. II. KRENKEL, Cime. E. Po'r'rs.

copies ofthis patent may be obtained for five cents each, by addressing the i Commissioner4 of Patents,

` Washington, D. C. 

